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path: root/drivers/pci/intel-iommu.c
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Diffstat (limited to 'drivers/pci/intel-iommu.c')
-rw-r--r--drivers/pci/intel-iommu.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index 0c4ab3b0727..e079a5237c9 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -34,7 +34,7 @@
#include "intel-iommu.h"
#include <asm/proto.h> /* force_iommu in this header in x86-64*/
#include <asm/cacheflush.h>
-#include <asm/iommu.h>
+#include <asm/gart.h>
#include "pci.h"
#define IS_GFX_DEVICE(pdev) ((pdev->class >> 16) == PCI_BASE_CLASS_DISPLAY)
@@ -745,12 +745,12 @@ static char *fault_reason_strings[] =
"non-zero reserved fields in PTE",
"Unknown"
};
-#define MAX_FAULT_REASON_IDX ARRAY_SIZE(fault_reason_strings)
+#define MAX_FAULT_REASON_IDX ARRAY_SIZE(fault_reason_strings) - 1
char *dmar_get_fault_reason(u8 fault_reason)
{
- if (fault_reason > MAX_FAULT_REASON_IDX)
- return fault_reason_strings[MAX_FAULT_REASON_IDX];
+ if (fault_reason >= MAX_FAULT_REASON_IDX)
+ return fault_reason_strings[MAX_FAULT_REASON_IDX - 1];
else
return fault_reason_strings[fault_reason];
}
@@ -995,7 +995,6 @@ static struct intel_iommu *alloc_iommu(struct dmar_drhd_unit *drhd)
return iommu;
error_unmap:
iounmap(iommu->reg);
- iommu->reg = 0;
error:
kfree(iommu);
return NULL;
@@ -1808,7 +1807,7 @@ get_valid_domain_for_dev(struct pci_dev *pdev)
if (!domain) {
printk(KERN_ERR
"Allocating domain for %s failed", pci_name(pdev));
- return 0;
+ return NULL;
}
/* make sure context mapping is ok */
@@ -1818,7 +1817,7 @@ get_valid_domain_for_dev(struct pci_dev *pdev)
printk(KERN_ERR
"Domain context map for %s failed",
pci_name(pdev));
- return 0;
+ return NULL;
}
}